To the Editor: I suggest that Drs D'Arcy and
McGee1 should have entitled their article,
"Does This Patient Have Abnormal Median Nerve Conduction?"

Carpal tunnel syndrome is experienced by patients who have sensory changes
in a median nerve distribution reproducible by the Tinel and Phalen signs.
This is the result of mechanical deformation of the median nerve in the carpal
tunnel. With prolonged and persistent compression, nerve conduction is slowed
and, ultimately, irreversible injury occurs.